PT-2026-60436 · Tomdever · Wpforo Forum

Valent1 · CVE-2026-15021 · Published 2026-07-16 · Updated 2026-07-16

Mitre

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

The wpForo Forum plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'location' Profile Field in all versions up to, and including, 3.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The sanitize text field() function applied at input does not encode double quotes, allowing attribute breakout via a payload that escapes the href attribute context and injects event handler attributes.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-15021

Affected Products

Wpforo Forum

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-15021 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/2cd364c5-c053-4c50-8232-bb47ab8e834b?source=cve · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.5/classes/Forms.php#L1035 · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.5/classes/Forms.php#L1074 · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.1/classes/Members.php#L1031 · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.1/classes/Forms.php#L1074 · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.1/classes/Forms.php#L1035 · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.5/classes/Members.php#L1031 · Note
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3603849%40wpforo&new=3603849%40wpforo · Note